[kube] avoid terminal resize loop on macOS Terminal app#46028
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When performing a quick resize, the macOS Terminal generates several intermediate window sizes between the original and final terminal sizes. During this resizing process, Teleport receives all the intermediate sizes and broadcasts them to all participants in the session. If the resizing information is sent back to the party that initiated the resize, it can create a feedback loop where the terminal and Teleport repeatedly attempt to enforce different window sizes. This PR prevents Teleport from resending the resize event to the party that triggered the initial resize. Fixes #30714 Signed-off-by: Tiago Silva <tiago.silva@goteleport.com>
timothyb89
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Aug 29, 2024
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Aug 30, 2024
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This was referenced Aug 30, 2024
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When performing a quick resize, the macOS Terminal generates several intermediate window sizes between the original and final terminal sizes. During this resizing process, Teleport receives all the intermediate sizes and broadcasts them to all participants in the session.
If the resizing information is sent back to the party that initiated the resize, it can create a feedback loop where the terminal and Teleport repeatedly attempt to enforce different window sizes.
This PR prevents Teleport from resending the resize event to the party that triggered the initial resize. It also sends the current terminal size when other parties (peers, moderators and observers) first join the stream.
Fixes #30714
Changelog: Prevented Teleport Kubernetes access from resending resize events to the party that triggered the terminal resize, avoiding potential resize loops.